They creep along in miles long traffic jams on the interstate.
汽车总是爬行在州际之间的英里长的交通堵塞中。
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There wouldn't be much traffic on the interstate on a Saturday morning; he'd be able to drop off his haul in Rancho Cucamonga, California, by the end of the weekend.
On an eight-mile stretch of Interstate 15 ten miles north of San Diego, traffic engineers are installing an MIT-designed system which will introduce the "automated driver."The